Ken Bollen is the Henry Rudolph Immerwahr Distinguished Professor of Psychology and Sociology at UNC at Chapel Hill. He is a faculty member in the Quantitative Psychology Program in the Thurstone Psychometric Laboratory. He also is part of the Statistical Core and a Fellow of the Carolina Population Center. During 2014 to 2015, he is participating as a Visiting Scholar at RTI International. Since 1980 he has been an instructor in the ICPSR Summer Program in Quantitative Methods of Social Research. Bollen’s primary areas of statistical research are in structural equation models, longitudinal methods, and latent growth curve models. More details are available in his c.v..